Balasagunlu Yusuf
:Qutabya bilig (AD 1069-1070)(Kutadgu Bilig) (wisdom of Royal Glory) (Turkish
epic)
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Taken from: Notes on Marco Polo: ouvrage posthume by Paul Pelliot
Yusuf Khass Hadjib's
Kutadgu Bilig (1069), Wisdom of Royal Glory (Kutadgu Bilig);
A Turko-Islamic Mirror for
Princes, translated by Robert Dankoff (Chicago 1983)
When the sun is gone the appearance of the world is compared to the face of a Zangi
( appears twice in this book)
Conclusion: In the 11th century the Turks of Central Asia already used the word Zangi for black people.